Combining Texts
Ideas for
'On the Philosophy of Logic', 'Herculaneum Papyrus' and 'Conceptual truth and metaphysical necessity'
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7 ideas
10. Modality / B. Possibility / 1. Possibility
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8941
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We can't explain 'possibility' in terms of 'possible' worlds [Fisher]
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10. Modality / B. Possibility / 8. Conditionals / c. Truth-function conditionals
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8947
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If all truths are implied by a falsehood, then not-p might imply both q and not-q [Fisher]
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10. Modality / B. Possibility / 8. Conditionals / d. Non-truthfunction conditionals
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8949
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In relevance logic, conditionals help information to flow from antecedent to consequent [Fisher]
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10. Modality / C. Sources of Modality / 4. Necessity from Concepts
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16422
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The necessity of a proposition concerns reality, not our words or concepts [Stalnaker]
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16423
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Conceptual possibilities are metaphysical possibilities we can conceive of [Stalnaker]
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10. Modality / D. Knowledge of Modality / 3. A Posteriori Necessary
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16421
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Critics say there are just an a priori necessary part, and an a posteriori contingent part [Stalnaker]
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10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
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16429
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A 'centred' world is an ordered triple of world, individual and time [Stalnaker]
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